Non-metallocene catalyst, and preparation method
A non-metallocene and catalyst technology, applied in the field of non-metallocene catalysts and their preparation, can solve the problems of high catalyst preparation cost, complicated operation, and catalyst polymerization activity to be improved, and achieve simple preparation methods, simplified preparation steps, and reaction conditions mild effect
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[0017] The preparation method of catalyst provided by the invention comprises:
[0018] (1) In the presence of a saturated hydrocarbon medium, the general formula is ROH phenol derivatives or alcohol compounds and alkylaluminum are fully reacted at a molar ratio of 1.5 to 3.1:1 to generate an aluminum salt of ROH, and the aluminum salt is added to the aluminum The dialkyl magnesium with a salt molar ratio of 0.5 to 0.7: 1 continues to react to obtain an aluminum-magnesium complex, and the OR is selected from a phenoxy group or C with a substituent 6 ~C 12 The alkoxyl group, the number of substituents is 1 to 5, and the substituents are selected from hydrogen, C 1 ~C 6 Alkyl, C 1 ~C 3 alkoxy or nitro;
[0019] (2) fully react the above-mentioned aluminum-magnesium complex with the acyl naphthol derivatives of formula I or II, then add MX 4 To react, the addition of the acyl naphthol derivative is 0.7 to 1.1 times the molar number of the aluminum alkyl described in step (1...
example 1
[0041] Preparation of the catalyst of the present invention.
[0042] (1) 50 milliliters of the hexane solution that is dissolved with 0.5 grams (5 mmol) of phenol is slowly dripped into a reaction flask containing 2 milliliters of the hexane solution of triethylaluminum with a concentration of 0.9M, and the reaction is stirred at 25° C. Hour. 0.9 ml of 1.0 M dibutylmagnesium heptane solution was added and reacted for 3 hours to obtain a colorless and transparent aluminum-magnesium complex solution.
[0043] (2) Dissolve 0.3 g (1.6 mmol) of 2-acetyl-1-naphthol in 30 ml of hexane to form a solution, add it to the aluminum-magnesium complex solution prepared in step (1), and react with stirring at 25°C After 6 hours, a yellow transparent solution was obtained. 10 mL of 0.16M TiCl 4 The hexane solution was put into the reaction bottle, and then the above yellow transparent solution was slowly added dropwise, stirred and heated to 50° C. for 10 hours to obtain a reddish-brown t...
example 2
[0046] Catalyst is prepared by the method for example 1, and difference is (1) the addition of step phenol is 0.3 gram (3mmol), makes catalyst b: (2-acetyl group-1-naphthol base) (phenoxy group) dichloro titanium oxide. Its infrared spectrogram data are shown in Table 1, elemental analysis measured (calculated) values: C: 54.29 mass % (54.42 mass %), H: 3.61 mass % (3.53 mass %), Ti: 11.98 mass % (12.09 mass %).
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